kuzmick



DEVICE FOR BONDING BRAKE LININGS TO BRAKE SHOES Filed July 22, 1947 2Sheets-Sheet 1 4), 11:28 mu11| I r w 8 ,llfillllllllllilllliil lmlenfanL, Joseph M Kuzm/ck fir g yg iorney J. N. KUZMICK DEVICE FOR BONDINGBRAKE LININGS 'I'O BRAKE SHOES Aug 9, 1949.;

2 Sheets-Sheet 2 Filed July 22, 1947 FIG. 5.

lnvenfor.

Joseph N. Kuzmic/r I tentedlugt 9, 1949 2,4?8A05 'nmon role nonnmo BRAKEas an enema snoss .loseph N. Kck, Passaic, N. 3., assignor toRaybestos-Manhattan, Inc., Passaio, N. .L, a corporation of New Jersey IApplication July 22, 1947; Serial No. 762,653

This invention relates to improvements in a device for securing a brakelining to the face of a brake shoe and refers specifically to a devicefor applying heat to the brake shoe to cause the setting of aheat-sensitive adhesive interposed between the face of the shoe and thebrake lining while said lining is held upon the face of the brake shoeunder pressure.

The objects and advantages of my invention will be apparent from theaccompanying draw lugs and following detailed description.

in the drawings,

Fig, i is a slide elevational view of my device having a brake shoe andlining in operative position thereon.

Fig. 2 is a top plan view of the device shown in Fig. 1.

Fig. 3 is a sectional view taken on line Ell-4i of Fig.1.

Fig. 4: is a side elevational view of a brake shoe and lining embracedby a clamp.

Fig. 5 is an end elevational view of the device illustrated in Fig. d.

Fig. 6 is a fragmentary sectional view taken on line t-t of Fig. 4.

Referring in detail to the drawings, l indicates a supporting platformhaving feet 2. A pair of headers i are mounted upon the upper surface ofthe platform l adjacent one edge thereof, and are secured to saidplatform by means of a strap t which embraces both headers and isanchored to the platform by means of screws 5. The opposite end of eachheader 3 is secured with a mixing chamber t which is of the usual typeemployed with conventional gas burning appliances to control theproportions of combustible gas and air fed to the gas burning appliance.Associated with each of the mixing chambers 6 is a shutoff or controlvalve l manipulated by handles 8, the valves l serving to control thepassage of gas through pipes 9 to headers 3, pipes 9 being connected toa suitable source of combustible gas (not shown). Brackets ill mountedupon platform l support valves l and chambers 6.

A. curved burner pipe it connects at one end to each header 3 and isclosed at its opposite end by means of a cap I2 or other closure means.The pipe ill is curved on a radius of curvature which generally conformsto the radius of curvature of the average automobile brake shoe and hasan arcuate length conforming generally to the average arcuate length ofthe average brake shoe adapted to be operated onby the device.

As has been hereinbefore described, th he der 5 Claims. (Cl. 154-11) 3are mounted upon the platform I in spaced relationship. Similarly, thepipes ii "are disposed in spaced relationship and are positionedparallel to each other. Adjacent the convex portion of each of the pipesand disposed inwardly with respect to the vertical center line of eachof the pipes, a row of spaced burner apertures it are provided. As willbe hereinafter more fully described, a brake shoe carrying a brakeliningto be secured to the face of the shoe is adapted to be positionedbetween the spaced pipes ii.

Referring particularly to Fig. 4, a brake shoe it having an arcuateflange or working face it and a web or rib is is positioned upon a baseit which may be constructed of metal or wood. An arcuate strap it ofspring metal is secured at one end to the base ll by means of bolts ithaving threadedly engaged nuts 26]. At the opposite end the strap i t isjoined to a second strap it by means of bolts 22 and strap 2i isanchored at its opposite end to the end of base it by the internalthreadsof nut 2?. The opposite end of screw it has a slotted orbifurcated head 28 which, when the brake shoe it is mounted upon basell, engages the edge of web or rib It.

To mount an arcuate brake lining 29 upon the flange or working face itof the brake shoe M a heat responsive, preferably a heat settingadhesive 3|) is interposed between the working face it and the concaveface of the lining 29. The adhesive 30 may take the form of a phenoliccement, resin treated paper or asbestos, resin treated scrim or cheesecloth or the like.

With the lining 29 preliminarily, positioned upon the flange G5 with theadhesive interposed, the shoe It may be positioned upon base ll. Tofacilitate centering the shoe upon the base a slot 3! may be provided inthe face of the base into which an end 32 of the web it may bepositioned. The shoe i4 is positioned beneath strap l8 and said strapconforms to and engages the outer face of the lining 29, as shown bestin Figs-4 and 5. An aperture 33 may be provided in strap 2i throughwhich end 34 of the web l6 may project.

With the shoe in the position described, the nut 21 manipulated toproject screw 24 toward the web 16 thereby causing strap ill to exertuniform pressure over the major portion of the lining 29.

The shoe I l, clamped as hereinbefore described is then positionedbetween the pipes I I, as shown.

- 'best in Figs. 1, 2 and'3, the pipes conforming more or less to thecurvature of the flange I5 and being positioned below and slightlyoffset from the lateral edges of said flange. The gas may be turned onand lighted at the apertures I! whereby a plurality of flames will bedirected to the lower face of the flange IS. The flange l5, beingconstructed of metal, will readily conduct the heat of the flames to theadhesive which will function to secure the lining 29 while held underpressure to the flange I5. I have found that an average size brakelining for a passenger automobile may be secured to a brake shoe duringa heating period of two minutes or less using my present device.

It is to be understood that other expedients for clamping the brakelining to the flange I! may be employed, and my device may beconstructed in multiple, that is, three pipes -l| may be employed toheat two brake shoes simultaneously or four pipes may be used to heatthree shoes simultaneously and so on, in which case all but the endmostpipes will be provided with double rows of apertures l3. Other obviouschanges may be made by anyone skilled in the art and, hence, I do notwish to be limited except as necessitated by the prior art.

I claim as my invention:

1. A device for securing an automotive brake lining to a brake .shoe,which comprises a pair of spaced arcuate manifolds between which anarcuate brake shoe carrying a brake lining on its outer face is adaptedto be positioned, means connecting said manifolds to a source ofcombustible gas, each of said manifolds being provided with a pluralityof apertures whereby gas flames are directed to the inner face of saidbrake shoe to set an adhesive adapted to be interposed between: thebrake lining and outer face of the brake shoe,

gas, each of said manifolds being provided with a plurality of aperturesadjacent the convex sides of said manifolds whereby gas flames aredirected to the inner face of said brake shoe to set an adhesive adaptedto be interposed between the brake lining and outer face of the brakeshoe, and

, means for retaining the brake lining on'the outer face of the brakeshoe under pressure during the setting operation.

.3. A device for securing an automotive brake lining to a brake shoe,which comprises a pair of spaced arcuate manifolds between which anarcuate brake shoe carrying a brake lining on its outer face is adaptedto be positioned, means connecting said manifolds to a source ofcombustible gas, each'of said manifolds being provided with a pluralityof apertures adjacent the convex inner sides of said manifolds wherebygas flames are directed upwardly and inwardly toward the inner face ofsaid brake shoe to set an adhesive adapted to be interposed between thebrake lining and outer face of the brake shoe, and means for retainingthe brake lining on the outer face of the brake shoe under pressureduring the setting outer face is adapted to be positioned, meansconnecting said manifolds to a source of combustiblegas. air mixingvalves interposed in said connecting means to form a burnable gasmixture entering said manifolds, each of said manifolds being providedwith a plurality of apertures whereby gas flames are directed to theinner face of said brake shoe to set an adhesive adapted to beinterposed between the brake lining and outer face of the brake shoe,and means for retaining the brake lining on the outer face of the brakeshoe under pressure during the setting operation.

5. A device for securing an automotive brake lining to a brake shoe,which comprises a pair of spaced arcuate manifolds between which anarcuate brake shoe carrying a brake lining on its outer face is adaptedto be positioned, means connecting said manifolds to a source ofcombustible gas, each of said manifolds being provided with a pluralityof apertures whereby gas flames are dito the inner face, of said brakeshoe to set an adhesive adapted to be interposed between the brakelining and outer face of the brake shoe, and tension means positionedover the outer face of the brake lining for retaining the inner face ofthe brake lining in intimate contact with the outer face of the brakeshoe during the adhesive setting operation.

JOSEPH N. KUZMICK.

REFERENCES CITED .The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 393,022 Milledge Nov. 20, 1888802,876 O'Connor et a1. Oct. 24, 1905 916,209 Smallwood Mar. 23, 19092,358,483 Tilden Sept. 19, 1944 2,426,421 Tilden et a1. Aug. 26, 19472,433,760 Janes Dec. 30, 1947 2,444,191 Friberg 4---..- June 29, 1948

